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A 0.58-kg metal sphere oscillates at the end of a perpendicular spring. As the spring stretches from 0.13 to 0.26 m (relative to its unstrained length), the speed of the sphere decreases from 5.45 to 5.10 m/s. What is the spring constant of the spring?
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. How long is the arm of the centrifuge
A 15 kg block rests on a level frictionless surface and is attached by a light string to a 5.0 kg hanging mass where the string passes over a massless frictionless pulley, What is the tension connecting the string
A consumer upset with the latest trend of postal rate increases has decided to try to send letters by balloon even though they may not reach their intended destination
A thermos contains 150cm^3 of coffee at 85 celsius. To coolthe coffee, you drop two 11-g ice cubes into the thermos. What is the final temperature of the coffee
the speed with which hair or fingernails grow. what is the average speed of growth? What units are most appropriate for describing this speed
Light from a sodium vapor lamp passes through a filter that blocks all but a single narrow wavelength band. It then fallson two slits separated by 0.460mm. The resulting interferencepattern on a screen 2.20 meters away has adjacent bright fringes ..
The electric fluxthrough each face of a 5.0m x 5.0m x 5.0m cube is 130 Nm2/C. How much charge is inside the cube
A uniform rope of mass m and length L is hanging straight down from the ceiling. A small-amplitude transverse wave is sent up the rope from the bottom end. Derive an expression that gives the speed v of the wave on the rope in terms of the distanc..
A child and an adult are walking. Their legs swing like physical pendulums and both swing through the same maximum angle. what is the walking speed of the child
two forces fa and fb are applied to an object whose mass is 5.00 kg. the larger force is fa. when both forces point due
A coffee filter of mass 1.4 grams dropped from a height of 3 m reaches ground with a speed of 0.7 m/s. How much kinetic energy Kair did the air molecules gain from the falling coffee filter.
A 51-g handball moving with a speed of5 m/s strikes the wall at an angle of37° with the normal, and then bounces off with the same speed at the similar angle by the normal. It is in contact by the wall for 2.0 ms. what is the average force exerted by..
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